<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>CSS语法练习</title>
    <link rel="stylesheet" href="../css/style2.css">
</head>
<body>
<div class="box1">盒子1</div>
<div id="box" class="box2">盒子2</div>
<span class="class">交集选择器1</span>
<p class="tag" id="title">交集选择器2</p>
</body>
</html>